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700hp NA Katech 427 LT1 Grand Sport track car

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700hp NA Katech 427 LT1 Grand Sport track car

Old 11-22-2017, 05:07 PM
  #41  
LT4_CE
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I WANT!!!
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Old 01-13-2018, 05:34 PM
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No idle clips from that cam??!!
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Old 01-14-2018, 01:28 AM
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Default idle clip

youtube
GS 427 coming home
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Old 01-14-2018, 07:14 PM
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Originally Posted by [email protected] View Post
youtube
GS 427 coming home
This one???
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Old 01-14-2018, 08:11 PM
  #45  
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Phenominal video capturing the build progression from start to finish!!

May I ask (since I don't know), what generally causes a gap between HP and Torque, such as for this build 71 lb ft of torque (627/556). What is necessary to close that gap and increase the torque?

​​​​​​​What is more important at this level of performance, HP or TQ?

Thanks in advance!!

Last edited by WICKEDFRC; 01-14-2018 at 08:14 PM.
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Old 01-14-2018, 10:08 PM
  #46  
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yes
to the clip
Jason pulling out to load car in my buddys trailer.
I do not know why, but that car, especially on full boil, sounds like no other car Iv'e ever heard!!!
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Old 01-15-2018, 02:41 PM
  #47  
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Originally Posted by WICKEDFRC View Post
Phenominal video capturing the build progression from start to finish!!

May I ask (since I don't know), what generally causes a gap between HP and Torque, such as for this build 71 lb ft of torque (627/556). What is necessary to close that gap and increase the torque?

​​​​​​​What is more important at this level of performance, HP or TQ?

Thanks in advance!!
What causes the gap between hp and torque? Bore/stroke, cylinder head design, intake/exhaust airflow/design, camshaft/valve events, compression ratio, fuel type, spark/injection events are all major factors. Remember horsepower is just torque over time.
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Old 07-12-2018, 07:54 PM
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Originally Posted by Katech_Jason View Post
What causes the gap between hp and torque? Bore/stroke, cylinder head design, intake/exhaust airflow/design, camshaft/valve events, compression ratio, fuel type, spark/injection events are all major factors. Remember horsepower is just torque over time.
LOVE this package. Very interested in getting it. I had 16 Z06, how does this package compare to a stock Z06? Pretty similar in terms of power and delivery?
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Old 07-13-2018, 02:08 AM
  #49  
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Only question I have is what us the tech looking at with the hand held microscope in the crank case before the timing cover is installed.

Last edited by bc928; 07-13-2018 at 02:08 AM.
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Old 07-13-2018, 09:24 AM
  #50  
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Originally Posted by tbrenny33 View Post


LOVE this package. Very interested in getting it. I had ‘16 Z06, how does this package compare to a stock Z06? Pretty similar in terms of power and delivery?
Here are a couple graphs:

427 LT1 manual

3 C7 Z06 manual baselines
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Last edited by Katech_Jason; 07-13-2018 at 09:25 AM.
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Old 07-13-2018, 09:27 AM
  #51  
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Originally Posted by bc928 View Post
Only question I have is what us the tech looking at with the hand held microscope in the crank case before the timing cover is installed.
Piston squirter clearance
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Old 07-13-2018, 10:58 AM
  #52  
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Originally Posted by Katech_Jason View Post
Here are a couple graphs:

427 LT1 manual

3 C7 Z06 manual baselines
Thank you for posting those, very interesting to compare. The 427 is so nicely linear, and not so torquey down low, probably makes for a little more useable power and a ton of fun! Also noticed it appears redline is raised! I actually called a couple days ago. I'll be sending you an e-mail for more info soon. Thank you.
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Old 07-13-2018, 11:13 AM
  #53  
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But what's the mpg? ;-) ;-)

Originally Posted by blue_bomber697 View Post
And there it is. The perfect Corvette.
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